Android应用经常会和服务器端交互，这就需要手机客户端发送网络请求，下面介绍四种常用网络请求方式，我这边是通过Android单元测试来完成这四种方法的，还不清楚Android的单元测试的同学们请看Android开发技巧总结中的Android单元测试的步骤一文。
java.net包中的HttpURLConnection类
Get方式：
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02
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public static void requestByGet() throws Exception {
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03
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String path = "https://reg.163.com/logins.jsp?id=helloworld&pwd=android";
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05
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URL url = new URL(path);
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06
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// 打开一个HttpURLConnection连接
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07
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HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
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09
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urlConn.setConnectTimeout(5 * 1000);
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13
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if (urlConn.getResponseCode() == HTTP_200) {
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15
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byte[] data = readStream(urlConn.getInputStream());
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16
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Log.i(TAG_GET, "Get方式请求成功，返回数据如下：");
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17
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Log.i(TAG_GET, new String(data, "UTF-8"));
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19
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Log.i(TAG_GET, "Get方式请求失败");
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Post方式：
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02
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public static void requestByPost() throws Throwable {
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03
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String path = "https://reg.163.com/logins.jsp";
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05
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String params = "id=" + URLEncoder.encode("helloworld", "UTF-8")
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06
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+ "&pwd=" + URLEncoder.encode("android", "UTF-8");
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07
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byte[] postData = params.getBytes();
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09
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URL url = new URL(path);
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10
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// 打开一个HttpURLConnection连接
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11
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HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
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13
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urlConn.setConnectTimeout(5 * 1000);
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15
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urlConn.setDoOutput(true);
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17
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urlConn.setUseCaches(false);
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19
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urlConn.setRequestMethod("POST");
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20
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urlConn.setInstanceFollowRedirects(true);
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22
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urlConn.setRequestProperty("Content-Type",
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23
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"application/x-www-form-urlencode");
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27
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DataOutputStream dos = new DataOutputStream(urlConn.getOutputStream());
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32
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if (urlConn.getResponseCode() == HTTP_200) {
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34
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byte[] data = readStream(urlConn.getInputStream());
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35
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Log.i(TAG_POST, "Post请求方式成功，返回数据如下：");
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36
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Log.i(TAG_POST, new String(data, "UTF-8"));
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38
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Log.i(TAG_POST, "Post方式请求失败");
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org.apache.http包中的HttpGet和HttpPost类
Get方式：
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02
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public static void requestByHttpGet() throws Exception {
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03
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String path = "https://reg.163.com/logins.jsp?id=helloworld&pwd=android";
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05
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HttpGet httpGet = new HttpGet(path);
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07
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HttpClient httpClient = new DefaultHttpClient();
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09
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HttpResponse httpResp = httpClient.execute(httpGet);
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11
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if (httpResp.getStatusLine().getStatusCode() == HTTP_200) {
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13
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String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
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14
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Log.i(TAG_HTTPGET, "HttpGet方式请求成功，返回数据如下：");
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15
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Log.i(TAG_HTTPGET, result);
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17
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Log.i(TAG_HTTPGET, "HttpGet方式请求失败");
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Post方式：
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02
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public static void requestByHttpPost() throws Exception {
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03
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String path = "https://reg.163.com/logins.jsp";
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05
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HttpPost httpPost = new HttpPost(path);
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07
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List<NameValuePair> params = new ArrayList<NameValuePair>();
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08
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params.add(new BasicNameValuePair("id", "helloworld"));
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09
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params.add(new BasicNameValuePair("pwd", "android"));
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11
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HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8);
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13
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httpPost.setEntity(entity);
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15
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HttpClient httpClient = new DefaultHttpClient();
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17
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HttpResponse httpResp = httpClient.execute(httpPost);
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19
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if (httpResp.getStatusLine().getStatusCode() == HTTP_200) {
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21
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String result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
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22
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Log.i(TAG_HTTPGET, "HttpPost方式请求成功，返回数据如下：");
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23
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Log.i(TAG_HTTPGET, result);
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25
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Log.i(TAG_HTTPGET, "HttpPost方式请求失败");
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